Installation of SAP Solman 7.1 fails with the message " Error: Can't read from file /path/SUBS_PARAM_TO_BE_SET.xml" with Red Hat Enterprise Linux 6

Issue

• Installation of SAP Solman 7.1 fails with the message " Error: Can't read from file /path/SUBS_PARAM_TO_BE_SET.xml" with Red Hat Enterprise Linux 6. The SAP installation process uses "setgid()" to change the effective group to "sapinst" before creating the files, but somehow the group ownership is changed back to "root" when the file is actually written.